Myrtillocactus Geometrizans - Boobie Cactus. How to care for Boobie cactus Light: Full Sun Place in a bright room that is sun drenched almost all day. Or directly in a south-facing window. Watering need: Minimum demand All of the soil should be dry before watering. If the soil is still moist, you risk giving this plant too much water which can make it start to rot. When you water this plant, water well and then allow the soil to dry out completely before you water it again.
